论文标题
从体积数据及其比较中提取ISO地表的两种方法
Two Methods for Iso-Surface Extraction from Volumetric Data and Their Comparison
论文作者
论文摘要
从体积数据中提取ISO曲面有多种方法。大多使用行进立方体或四面体或射线跟踪方法。有许多特定的技术可以提高计算速度并降低记忆要求。尽管ISO表面提取的精度也非常重要，但通常不会提及。对所选方法的比较是在不同方面进行的：基于球体的近似值，ISO表面提取过程时间，生成的三角形数量以及半径，面积和体积误差的估计。出乎意料的是，实验证明，提取的ISO表面的提取的精度和人类感知之间没有直接关系
There are various methods for extracting iso-surfaces from volumetric data. Marching cubes or tetrahedra or raytracing methods are mostly used. There are many specific techniques to increase speed of computation and decrease memory requirements. Although a precision of iso-surface extraction is very important, too, it is not mentioned usually. A comparison of the selected methods was made in different aspects: iso-surface extraction process time, number of triangles generated and estimation of radius, area and volume errors based on approximation of a sphere. Surprisingly, experiments proved that there is no direct relation between precision of extracted and human perception of the extracted iso-surface
